Molding-machine



(No Model.) 2 Sheets Sheet l.

W.v S. GARRISON.

MOLDING MACHINE.

N0. 331,050. Patented N0v.24,. 1885.

N. PETERS. Photo-Lilhngnpher, Walhingiun, D4 C.

(No Model.) 2 Sheets-Sheet 2.

W. S. GARRISON. MOLDINGMA'GHINH,

m J2 W 2 0 E m w M W H PATENT" WALTER s. GARRISON, or BALTIMORE,MARYLAND.

MOLDING-MACHINE.

SPECIFICATION forming part of Letters Fatent No. 331,050, dated November24, 1885.

Application filed June 29, 1885. Serial No. 179,204. (No model.) I

To all whom it may concern.-

Be it known that I, WALTER S. GARRISON, of the city of Baltimore, andState of Maryland, have invented certain Improvements in Wood-MoldingMachines, of which the following is a specification.

This invention relates to an improved attachment for a molding-machine,whereby waved corrugations, grooves, or reeds are cut on the face of astrip of molding; and it consists in mechanism by means of which avibratory, as well as alongitudinal,movement is imparted to a revolublecutter.

In the drawings, forming a part hereof, Figures I, II, III, and IV areplan or top views of the principal parts of the machine, showing thesame in different positions, as hereinafter fully described. Fig. V is asection taken through the dotted line at as, Fig. I. Fig. VI

go, is a section taken through the dotted line 3 3 Fig. II. Fig. VIIrepresents a piece of molding having waved reeds on its upper surface.

A is a table supported by suitable legs, which are not shown.

5 B is a revoluble disk on a shaft, a, which is driven in any suitablemanner.

G is alongitudinally-moving bar confined in guides b b.

D is a slotted enlargement in the bar 0, the

0 slot of which is denoted by c.

E is a crank-pin projecting from the face of the disk B, which passesthrough the slot 0 in the enlargement D of the bar 0. The pin E beingsome distance from the center of the disk, produces in the revolution ofthat device a reciprocating motion of the bar 0.

F is a crank fastened to the pin E above the bar 0, the pin d of whichrests in a slot, e, in the transversely-moving bar G to reciprocate 0the last-named device. This bar is guided by means of a stand, H,projecting from the up per surface of the table A. The bars 0 and G,together with certain connections hereinafter specified and described,serve to effect, re-

5 spectively, a vibratory and a longitudinal movement of the cutter andits spindle, which, together with its attachments, I will now proceed todescribe.

I is a cutter-head, of any appropriate description,on a spindle, K,which is driven by means of a pulley, f, and a belt, which is not shown.The spindle K is supported in boxes 9 g, bolted to a plate, L, and issusceptible of a'longitudinal as well as a rotary motion, the latterbeing obtained through the medium of 5 the pulley f, as before stated.To effectthe longitudinal movement of the cutter-spindle K, the saidspindle has a collar, h, secured to it by means of a set-screw, t, andthis collar revolves in a block, j, connected by the pins k and links Zm to the short arm of lever M. r The fulcrum of the lever M is at n. Thelong arm of the lever M is loosely attached to a cross-piece, 0, screwedto the transverselymoving bar G. From this it will be seen that in thereciprocating movement of the bar G the spindle K receives a similarmotion, but in view of the difference in length of the two arms of thelever M the motion of the spindle is much less than that of the bar G.The lever M is guided by the slotted curved bar N and a screw, 9, whichpasses through the slot. The plate L has a circular groove, q, in itsunder side, and rests on a similarly-shaped stationary plate, 0, whichis provided with a projection, o adapted to fit closely in the groove q.The plate L is held down by means of the lugs s.

I do not limit myself to the exact construction of the plates L and O,as any other devices which will admit of the spindle and cutter having acurved movement during the longitudinal movement of the same wouldanswer the same purpose. For instance, the plate L could be secured to avertical shaft after the manner of the disk B. The vibratory action ofthe spindle and cutter is derived, as before stated, from the bar 0, andthe connections consist of the lever P, which is in sections foradjusting purposes, and attached at t and a to the block j, and asimilar block, 1), in which the spindle K rotates.

The molding is denoted by Q, and shown in its correct position in dottedlines in Figs. I, II, III, and IV, and it will be seen that the 95position of the cutter-head with reference to it is different in each.The molding is shown completed in Fig. VII. The devices for feeding themolding may be of any appropriate construction, and are not shown anddescribed herein, as they form no part of my present invention.

The dotted lines marked I, II, III, and IV in Fig. VII indicate the fourpositions of the ter-spindle K, adapted to havea longitudinal motionon aplate having a vibratory movement, substantially a's described,combined:

with the levers M and P, suitably connected to the said spindle, and thereciprocating bars G andO, attached, respectively,to the said levers,substantially as specified.

2. In combination with the revoluble cut- I fer-spindle K, supported inbearing-boxes on the vibratory plate L, the lever'M, connected toithe'said spindle, barG, attached to' the lever Mand having theslot-e, andthe rotary crank-pin d, which rests in the said slot and in itsrevolution efiects a reciprocating movement of the said bar andalongitudi'nal motion of-the cutter-spindle, substantially as specified.

3. In combination with the revoluble cutter-spindle K, supported inbearing-boxes 0n the vibratory plate L, the lever P, connected to thesaid spindle, rod 0, attached to the lever 1? and having the slot 0, andthe rotary crank-pin E, which rests in the said'slotiand in itsrevolution effects a vibratory movement of thecutter-spindle,substantially as specified.

l WALTER S. .GARRISOlY Q Witnesses: v

D'ANL. FISHER, -WILLIAM McOAWLEY;

